mitt romney last night owned it. if you have any doubt, look at this morning's denver post of the swing state here, colorado, saying he may have changed the dynamics of this race. >> under the president's policies, middle income americans have been buried. they're just being crushed. >> it was an energized mitt romney taking direct aim at the president's economic policies and offering a sharply different approach. >> we know that the path we're taking is not working. it's time for a new path. >> romney came into the night with polls showing most voters thought the president would win. he clearly exceeded expectations. cbs news poll of uncommitted voters shows by a 2-1 margin, romney had won. 56% said their opinion of romney changed for the better. yet 13% said that of the president. he was especially effective in criticizing the president's policies and defending his own proposals. >> he has been running on this tax plan for 18 months. now, five weeks before the election, he is saying that his big, bold idea is never